TOTALIZER-TRANSMITTER

Transcription

1 TOTALIZER-TRANSMITTER MODEL TR04-2 OPERATION AND MAINTENANCE MANUAL PARTS LIST FEATURING: *SEALED HOUSING *STANDARD TOTALIZER ASSEMBLY *MAGNETICALLY ACTUATED REED SWITCH 3255 WEST STETSON AVENUE HEMET, CALIFORNIA U.S.A. PHONE: FAX: VISIT OUR WEBSITE:

2 WARRANTY This Warranty shall apply to and be limited to the original purchaser consumer of any McCrometer product. Meters or instruments defective because of faulty material or workmanship will be repaired or replaced, at the option of McCrometer, free of charge, FOB the factory in Hemet, California, within a period of one (1) year from the date of delivery. Repairs or modifications by others than McCrometer or their authorized representatives shall render this Warranty null and void in the event that factory examination reveals that such repair or modification was detrimental to the meter or instrument. Any deviations from the factory calibration require notification in writing to McCrometer of such recalibrations or this Warranty shall be voided. In case of a claim under this Warranty, the claimant is instructed to contact McCrometer, 3255 W. Stetson Ave., Hemet, California 92545, and to provide an identification or description of the meter or instrument, the date of delivery, and the nature of the problem. The Warranty provided above is the only Warranty made by McCrometer with respect to its products or any parts thereof and is made expressly in lieu of any other warranties, by course of dealing, usages of trade or otherwise, expressed or implied, including but not limited to any implied warranties of fitness for any particular purpose or of merchantability under the uniform commercial code. It is agreed this Warranty is in lieu of and buyer hereby waives all other warranties, guarantees or liabilities arising by law or otherwise. Seller shall not incur any other obligations or liabilities or be liable to buyer, or any customer of buyer for any anticipated or lost profits, incidental or consequential damages, or any other losses or expenses incurred by reason of the purchase, installation, repair, use or misuse by buyer or third parties of its products (including any parts repaired or replaced); and seller does not authorize any person to assume for seller any other liability in connection with the products or parts thereof. This Warranty cannot be extended, altered or varied except by a written instrument signed by seller and buyer. This Warranty gives you specific legal rights, and you may also have other rights which vary from state to state. McCrometer reserves the right to make improvements and repairs on product components which are beyond the Warranty period at the manufacturer s option and expense, without obligation to renew the expired Warranty on the components or on the entire unit. Due to the rapid advancement of meter design technology, McCrometer reserves the right to make improvements in design and material without prior notice to the trade. All sales and all agreements in relation to sales shall be deemed made at the manufacturer s place of business in Hemet, California and any dispute arising from any sale or agreement shall be interpreted under the laws of the State of California. Copyright 2005 McCrometer. All written material should not be changed or altered without permission of McCrometer. The published technical data and instructions is subject to change without notice. Contact your McCrometer representative for current technical data and instructions. 2

3 I. DESCRIPTION II. III. IV. MODEL TR04-2 TOTALIZER-TRANSMITTER INDEX SPECIFICATIONS UNPACKING INSTALLATION 1. Remove Bonnet 2. Clean Meter Head *3. Adapter Plate **4. Vertical Shaft Removal **5. Replacement Vertical Shaft 6. Totalizer Drive Magnet 7. Totalizer-Transmitter & Bonnet Assembly 8. Transmitter Wiring V. SERVICE SCHEDULE VI. VII. WORKING AREA TOTALIZER-TRANSMITTER ASSEMBLY 1. Bonnet Mounting Screws 2. Totalizer-Transmitter 3. Totalizer Change Gears 4. Totalizer Drive Magnet Assembly 5. Dial Replacement 6. Transmitter Switch I. DESCRIPTION MODEL TR04-2 TOTALIZER-TRANSMITTERS provide a totalization of flow volume and a pulse rate output signal of one contact per totalizer hand revolution when mounted on any McCrometer meter (some meters must be equipped with a special adapter ring, part #2-4108). Construction of the totalizer-transmitter features a hermetically sealed housing. The totalizertransmitter is mechanically driven by the meter mechanism and features a six digit, straight reading type totalizer with a full 3 inch diameter, 100 division center sweep dial that permits extremely accurate readings for timing purposes in determining flow rates. The totalizer dial can be furnished in gallons, cubic feet, acre feet, or any standard liquid measuring units. The transmitter utilizes a durable magnetically actuated reed switch. The bonnet, with padlock hasp, is o-ring sealed to the meter head. II. SPECIFICATIONS ACCURACY TEMPERATURE RANGE FLOW RANGE plus or minus 2% within the range specified for each meter size. 140 F maximum. Consult factory for special construction for higher temperatures. acceptable for each totalizertransmitter unit is the same as that for the meter to which the unit mounts. VIII. IX. TROUBLESHOOTING 1. Continuity Check 2. Transmitter Lines 3. Switch Position INSPECTION X. REASSEMBLY 1. Reinstall Transmitter * For Conversion From Old Style Totalizer to TR04-2 Only. ** For Conversion From CN06 to TR04-2 Only. (Serial # and Lower,.100 Dia. Shaft Tip) OUTPUT SIGNAL SWITCH RATING MATERIALS SHIPPING WEIGHT OPTIONAL EQUIPMENT Pulse rate: one contact per revolution of totalizer sweep hand. Contact Rating - 10 watts Switching Voltage VDC Max. Switching Current Amp.- Max. Carry Current Amp.-Max. Initial Contact Resistance Ohms-Max. Capacitance Picofarads-typ. Note: Switch contact normally open. used in construction are chosen for their durability and immunity to the corrosive effects of atmospheric moisture and of the liquids measured by the meter assembly. 4 pounds includes switches rated for various applications. Consult factory for special applications. 3

4 III. IV. ORDERING INFO customer must specify: Serial number of the meter unit to be mounted, or change gear and dial on the totalizer that is going to be replaced. TOTALIZER-TRANSMITTER INSTALLATION UNPACKING. When unpacking the unit, any damage due to rough or improper handling should be reported to the transportation firm and McCrometer. If for any reason it is determined that the unit or parts of the unit should be returned to the factory, please contact McCrometer for clearance prior to shipment. Each unit must be properly packaged to prevent any further damage. The factory assumes no responsibility for equipment damage in return shipment due to improper packaging. The shipping carton contains the following items: Model TR Mounting Equipment as required... - Operation and Maintenance Manual... 1 INSTALLATION is normally made at the factory when the meter is assembled, but may be made in the field. Depending on what situation exists, various steps for installation apply and the procedures are outlined below. 1. REMOVE BONNET from existing meter head by removing mounting screws. Remove existing totalizer from meter head by removing mounting screws and lifting unit off. 2. CLEAN METER HEAD of all dirt, glue, and other foreign material. *3. ADAPTER PLATE (part #2-4108), and gasket (part # must be attached to the top of the meter head on the old style LP21 (3 hole bolt circle) and all ML45, ML47, and ML49 meters. Adapter plate can be secured to the meter head by three mounting screws (part # ) after the gasket has been centered on the head. Throughout the manual the top of the adapter plate will be referred to as the top of the meter head. **4.VERTICAL SHAFT REMOVAL can be accomplished by removing the two screws inside the meter head which secure the vertical shaft collar and bearing assembly to the meter head. Remove the A-drive gear from the vertical shaft after loosening the set screw in the gear hub. Spin the vertical shaft collar and bearing assembly gently, checking for any sign of wear. If collar and bearing assembly are all right remove from shaft by loosening set screw in hub and sliding off. Collar and bearing assembly will be used on the new vertical shaft. **5.REPLACEMENT VERTICAL SHAFT should be inspected to be sure it is not bent or damaged. Insert new shaft gently into the gearbox through the opening in the top of the meter head. Rotate the shaft gently until it is engaged in the driven miter gear shaft of the miter gear frame assembly. Replace the collar & bearing assembly and secure the two screws that hold it in place. Do not overtighten the screws as this can cock the bearing and bind the vertical shaft. Tighten set screw in the hub. Turn the top of the vertical shaft to check for any bind or drag. Should any bind or drag be apparent, it can usually be corrected by adjusting the vertical shaft collar and bearing assembly. Loosen the set screw in the hub and slide the shaft downward until it rests firmly against the driven miter gear shaft, then lift up about 1/64". Tighten set screw. 6. TOTALIZER DRIVE MAGNET ASSEMBLY can now be placed on the vertical shaft, hub down. (Totalizer drive magnet will be in place already if replacing a standard totalizer.) Position the face of the magnet 1/16" below the top surface of the meter head. Adjustments can be made by loosening the socket head set screw in the side of the totalizer drive magnet assembly and sliding it up and down the vertical shaft as desired. Always be sure the set screw is tightened into the flat on the vertical shaft when adjustments are completed. 7. TOTALIZER-TRANSMITTER and bonnet assembly should be placed on the meter head in the desired position after the bonnet o-ring (#2) has been covered with a thin coat of silicone grease. Secure four screws (#3). 8. TRANSMITTER WIRING can be accomplished by following the wiring diagram on page 7. TOTALIZER-TRANSMITTER OPERATION AND MAINTENANCE MANUAL V. MCCROMETER products have been carefully designed to be as maintenance-free as possible. Periodic preventive maintenance, however, is highly recommended and should be practiced according to schedule to ensure continuous accuracy and trouble-free performance of your transmitter. The maintenance and inspection procedure can also be used as a guide to locating a problem in the unit that may be the cause of abnormal operation. VI. WORKING AREA chosen for cleaning and inspection of the internal components should be clean to reduce the chance of dust or dirt particles being introduced into the transmitter mechanism. VII. TOTALIZER-TRANSMITTER ASSEMBLY (#8) service should include cleaning and inspection of the unit, noting any excessive wear on the change gear (#6 & #7) that may lead to operational problems in the unit. * For Conversion From Old Style Totalizer to TR04-2 Only. ** For Conversion From CN06 to TR04-2 Only. (Serial # and Lower,.100 Dia. Shaft Tip) 4

5 1. BONNET MOUNTING SCREWS (#3) should be removed and the entire bonnet (#1) lifted off the meter. 2. TOTALIZER-TRANSMITTER is contained within the totalizer bonnet (#1) and held in place by a base cup (#4). It should not be necessary to remove the totalizer (#8) during inspection of the totalizer change gears (#6 & #7) during inspection; however, removal of the base cup (#4) is necessary for inspection of the totalizer change gears (#6 & #7). Removal of the base cup (#4) can be accomplished by inserting a small screwdriver into the two cutouts and prying upward under the edge. 3. TOTALIZER CHANGE GEARS (#6 & #7) should be inspected for any signs of wear. Both the A-(drive) gear and B-(driven) gear are attached to the lower portion of the totalizer assembly (#9). Spin the floating totalizer driven magnet in the center of the totalizer bottom (#9) to make certain it spins freely without bind or drag. The bottom of the totalizer has the letter A molded next to the A-drive gear shaft, and the letter "B" next to the B-driven gear shaft. IX. Connect the ohm meter (as described above) to the transmitter lines (in the junction box) and check continuity. If the ohm meter responds to this test then the transmitter lines between the junction box and the instrument are the probable cause of the problem. 3. SWITCH & BLOCK ASSEMBLY should be checked if the continuity checks showed that no contact was being made. Remove the bonnet as described in Section VII steps 1-2. The reed switch and mounting block assembly (#32) should be positioned vertically directly adjacent to the actuator. As the actuator (#34) turns with the odometer worm (#25), it should actuate the reed switch (#32). If the switch and block assembly (#32) have become damaged or the switch reeds have fused or burnt, the unit must be returned for repair. INSPECTION of all internal totalizer parts that may be replaced in the field has been accomplished at this point. Should any of the totalizer parts, upon inspection, appear to be damaged or excessively worn, they must be replaced to ensure proper meter operation and prevent further damage. 4. TOTALIZER DRIVE MAGNET ASSEMBLY located in the meter head at the top of the vertical shaft assembly should be checked and adjusted, if necessary, to position it 1/16 below the top surface of the meter head. Adjustments can be made by loosening the socket head set screw in the side of the totalizer drive magnet assembly and sliding it up or down the vertical shaft as desired. (See meter service manual.) 5. DIAL REPLACEMENT can be made at this time, if desired, and requires that the sweep hand (#12) first be removed by twisting the hand and lifting it off at the same time. Remove the two dial mounting screws (#11), lift the dial (#10) off the top plate (#14), replace with a new dial, and secure with the mounting screws (#11). Replace the sweep hand (#12) on the center shaft. The hand should be pointing to the same position as it was when it was removed. X. REASSEMBLY is necessary at this point. Before reassembling, make certain that the unit is cleaned of any dust or dirt. Costs for replacement parts not covered by warranty are available from current parts and price list. If it is determined that the unit should be returned for repair, please notify McCrometer prior to shipment. Each unit must be properly packaged to prevent damage to the unit in shipment. 1. REINSTALL TRANSMITTER on meter head by following steps 6 through 8 of Section IV. 6. TRANSMITTER SWITCH (#32) connections should be checked to be sure they are securely in place. VIII. TROUBLESHOOTING the transmitter is necessary if it is determined that the meter assembly and instrument are working properly but the transmitter is not functioning. 1. CONTINUITY CHECK should be performed on the transmitter, at the instrument, by using an ohm meter wired between the black and white transmitter lines. (See wiring diagram.) With the instrument disconnected and the meter operating (totalizer movement), the ohm meter should read 0 ohms once every totalizer sweep hand revolution. If the ohm meter responds to the test then the instrument is the probable cause of the problems. 2. TRANSMITTER LINES should be checked, at the junction box, if the ohm meter didn't respond to the above test. 5

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7 WIRING WHEN USED WITH MODEL IN16 0 WHITE BLACK WHITE BLACK & SHIELD MODEL IN16 REMOTE TOTALIZER JUNCTION BOX RESET WIRE (IF DESIRED) (SEE IN-16 DATA SHEET) MODEL TR04-2 WIRING WHEN USED WITH AUXILIARY EQUIPMENT AUXILIARY EQUIPMENT JUNCTION BOX WHITE BLACK (COM.) (AND SHIELD) MODEL TR04-2 7

8 TOTALIZER-TRANSMITTER MODEL TR04-2 PARTS LIST NO. QTY. PART NUMBER DESCRIPTION 1 7-TR04-2 MODEL TR04-2 TOTALIZER-TRANSMITTER TOTALIZER BONNET ASSEMBLY W/ WATER TIGHT CONNECTOR TOTALIZER BONNET LID W/ PIN O-RING TOTALIZER BONNET SCREW, BONNET MOUNTING (ea.) TOTALIZER BASE CUP O-RING, BASE CUP A-GEAR ASSEMBLY (SPECIFY # OF TEETH) B-GEAR ASSEMBLY (SPECIFY # OF TEETH) TR04-2 TOTALIZER TRANSMITTER MECHANISM (SPECIFY DIAL) TOTALIZER ASSEMBLY (256/1) (SPECIFY RATIO) TOTALIZER B TOTALIZER DIAL (SPECIFY) SCREW, DIAL MOUNTING (ea.) SWEEP HAND TOP PLATE & ODOMETER ASSEMBLY (ITEMS 14 THRU 23) TOP PLATE SCREW, TOP PLATE MOUNTING (ea.) SWEEP HAND SHAFT SWEEP HAND IDLER GEAR SWEEP HAND IDLER COVER SCREW, IDLER COVER MOUNTING ODOMETER ODOMETER DRIVE GEAR ODOMETER END SUPPORT PLATE SCREW, ODOMETER END SUPPORT PLATE MTG A-GEAR SHAFT AND 44 x 11 TOOTH GEAR ASSEMBLY ODOMETER WORM & CHANGE GEAR SHAFT ASSEMBLY x 11 TOOTH GEAR WITH HUB IDLER SHAFT IDLER GEAR GEAR SPACER HUB DRIVE SHAFT DRIVEN MAGNET WASHER DRIVEN MAGNET HUB POLE DRIVEN MAGNET SCREW, MAGNET MTG BOTTOM PLATE TERMINAL BLOCK TRANSMITTER REED SWITCH & MOUNTING BLOCK ASSEMBLY REED SWITCH ACTUATOR ASSEMBLY SCREW, STAINLESS STEEL FILL. HD TRANSMITTER CABLE STRAIN RELIEF ASSEMBLY NUT, 6-32 HEX BRASS WATERTIGHT CONNECTOR DESICCANT CAPSULE CONSULT FACTORY FOR PRICING. 8

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11 SERIAL NUMBER REPAIR RECORD PURCHASE DATE METER SIZE & MODEL NO. REGISTRATION INDICATOR DIAL GEARING NOTES: SPECIFICATIONS INDEX ODOMETER READING CHANGE GEARS A/B RATIO DATE REPAIR METER LOCATION COMMENTS 11

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